252515900 has 72 divisors (see below), whose sum is σ = 674436000. Its totient is φ = 79914240.

The previous prime is 252515891. The next prime is 252515917. The reversal of 252515900 is 9515252.

252515900 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4775 + ... + 22974.

Almost surely, 2^252515900 is an apocalyptic number.

252515900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252515900 is an abundant number, since it is smaller than the sum of its proper divisors (421920100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252515900 is a wasteful number, since it uses less digits than its factorization.

252515900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27783 (or 27776 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 252515900 is about 15890.7488810314. The cubic root of 252515900 is about 632.0666990173.

The spelling of 252515900 in words is "two hundred fifty-two million, five hundred fifteen thousand, nine hundred".